There are two types of Taka.
1) Taka as in Taka Taka - waste you get rid of once you've used its content.
2) Taka - packaging you WANT after use since it's still valuable.
Taka bank - we mean the latter.
In dandora, we use shops as DROP OFF & PICK UP point for sorted household waste.
Accumulate tokens & Redeem (Donate, Buy goods/service, Trade)
This updated model seems to work less cost, easy logistics, storage.